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21.
Referential gaze during situated language production and comprehension is tightly coupled with the unfolding speech stream (
[Griffin, 2001]
,
[Meyer et al., 1998]
and
[Tanenhaus et al., 1995]
). In a shared environment, utterance comprehension may further be facilitated when the listener can exploit the speaker’s focus of (visual) attention to anticipate, ground, and disambiguate spoken references. To investigate the dynamics of such gaze-following and its influence on utterance comprehension in a controlled manner, we use a human–robot interaction setting. Specifically, we hypothesize that referential gaze is interpreted as a cue to the speaker’s referential intentions which facilitates or disrupts reference resolution. Moreover, the use of a dynamic and yet extremely controlled gaze cue enables us to shed light on the simultaneous and incremental integration of the unfolding speech and gaze movement.We report evidence from two eye-tracking experiments in which participants saw videos of a robot looking at and describing objects in a scene. The results reveal a quantified benefit-disruption spectrum of gaze on utterance comprehension and, further, show that gaze is used, even during the initial movement phase, to restrict the spatial domain of potential referents. These findings more broadly suggest that people treat artificial agents similar to human agents and, thus, validate such a setting for further explorations of joint attention mechanisms. 相似文献
22.
Hal R. Arkes David Hirshleifer Danling Jiang Sonya S. Lim 《Organizational behavior and human decision processes》2010
We examined reference point adaptation following gains or losses in security trading using participants from China, Korea, and the US. In both questionnaire studies and trading experiments with real money incentives, reference point adaptation was larger for Asians than for Americans. Subjects in all countries adapted their reference points more after a gain than after an equal-sized loss. When we introduced a forced sale intervention that is designed to close the mental account for a prior outcome, Americans showed greater adaptation toward the new price than their Asian counterparts. We offer possible explanations both for the cross-cultural similarities and the cross-cultural differences. 相似文献
23.
J. L. Dowell 《Philosophical Studies》2008,140(1):19-46
Frank Jackson has argued that only if we have a priori knowledge of the extension-fixers for many of our terms can we vindicate
the methodological practice of relying on intuitions to decide between philosophical theories. While there has been much discussion
of Jackson’s claim that we have such knowledge, there has been comparatively little discussion of this most powerful argument
for that claim. Here I defend an alternative explanation of our intuitions about possible cases, one that does not rely on
a priori extension-fixers. This alternative explanation provides a vindication of our reliance on intuitions, while blocking
Jackson’s abductive argument for a priori semantic knowledge. In brief, I argue that we should regard our armchair intuitions
as providing an important, a priori source of evidence for hypotheses about the contents of our implicit referential policies
with regard to our terms. But all such hypotheses have a potential falsifier that is only discoverable empirically. In other
words, gold-standard evidence for such hypotheses is always empirical.
相似文献
J. L. DowellEmail: |
24.
医疗价格过度增长的管制原因分析 总被引:1,自引:0,他引:1
医疗服务的准公共产品特征说明医疗价格问题不能完全由市场来解决,政府必须对医疗价格进行管制。造成医疗价格高昂的原因是多样的和复杂的,基于对医疗价格的政府管制现状分析,认为对医疗价格的管制不善,是导致中国高昂医疗价格的原因之一,并且提出了对医疗价格进行管制的制度框架。 相似文献
25.
Overconfidence and underconfidence: When and why people underestimate (and overestimate) the competition 总被引:5,自引:0,他引:5
Don A. Moore Daylian M. Cain 《Organizational behavior and human decision processes》2007,103(2):197-213
It is commonly held that people believe themselves to be better than others, especially for outcomes under their control. However, such overconfidence is not universal. This paper presents evidence showing that people believe that they are below average on skill-based tasks that are difficult. A simple Bayesian explanation can account for these effects and for their robustness: On skill-based tasks, people generally have better information about themselves than about others, so their beliefs about others’ performances tend to be more regressive (thus less extreme) than their beliefs about their own performances. This explanation is tested in two experiments that examine these effects’ robustness to experience, feedback, and market forces. The discussion explores the implications for strategic planning in general and entrepreneurial entry in particular. 相似文献
26.
Chien-Huang Lin Pei-Hsun Wu Shih-Chieh Chuang Danny T. Kao 《Asian Journal of Social Psychology》2007,10(3):179-187
Prior research seems to have neglected the factors that influence consumers to use price information as an indicator of quality or sacrifice. Based on the concept of 'goal looms larger', Study 1 in the present research demonstrated that the extent to which consumers use price information as an indicator of quality or sacrifice is a function of consumer goal (promotion focus vs prevention focus). Study 2 demonstrated that extremeness aversion is a function of consumer goal. The extent of extremeness aversion is significantly greater for prevention-focused consumers than for promotion-focused consumers. 相似文献
27.
Arvid Båve 《Synthese》2009,169(1):51-73
The article first rehearses three deflationary theories of reference, (1) disquotationalism, (2) propositionalism (Horwich),
and (3) the anaphoric theory (Brandom), and raises a number of objections against them. It turns out that each corresponds
to a closely related theory of truth, and that these are subject to analogous criticisms to a surprisingly high extent. I
then present a theory of my own, according to which the schema “That S(t) is about t” and the biconditional “S refers to x
iff S says something about x” are exhaustive of the notions of aboutness and reference. An account of the usefulness of “about”
is then given, which, I argue, is superior to that of Horwich. I close with a few considerations about how the advertised
theory relates to well-known issues of reference, the conclusions of which is (1) that the issues concern reference and aboutness
only insofar as the words “about” and “refer” serve to generalise over the claims that are really at issue, (2) that the theory
of reference will not settle the issues, and (3) that it follows from (2) that the issues do not concern the nature of aboutness
or reference. 相似文献
28.
29.
《Quarterly journal of experimental psychology (2006)》2013,66(7):1354-1371
Previous research suggests that there are significant differences in the operation of reference memory for stimuli of different modalities, with visual temporal entries appearing to be more durable than auditory entries (Ogden, Wearden, & Jones, 2008, 2010). Ogden et al. (2008, 2010) demonstrated that when participants were required to store multiple auditory temporal standards over a period of delay there was significant systematic interference to the representation of the standard characterized by shifts in the location of peak responding. No such performance deterioration was observed when multiple visually presented durations were encoded and maintained. The current article explored whether this apparent modality-based difference in reference memory operation is unique to temporal stimuli or whether similar characteristics are also apparent when nontemporal stimuli are encoded and maintained. The modified temporal generalization method developed in Ogden et al. (2008) was employed; however, standards and comparisons varied by pitch (auditory) and physical line length (visual) rather than duration. Pitch and line length generalization results indicated that increasing memory load led to more variable responding and reduced recognition of the standard; however, there was no systematic shift in the location of peak responding. Comparison of the results of this study with those of Ogden et al. (2008, 2010) suggests that although performance deterioration as a consequence of increases in memory load is common to auditory temporal and nontemporal stimuli and visual nontemporal stimuli, systematic interference is unique to auditory temporal processing. 相似文献
30.
Regier T 《Cognitive Science》2005,29(6):819-865
Children improve at word learning during the 2nd year of life—sometimes dramatically. This fact has suggested a change in mechanism, from associative learning to a more referential form of learning. This article presents an associative exemplar-based model that accounts for the improvement without a change in mechanism. It provides a unified account of children's growing abilities to (a) learn a new word given only 1 or a few training trials ("fast mapping"); (b) acquire words that differ only slightly in phonological form; (c) generalize word meanings preferentially along particular dimensions, such as object shape (the "shape bias"); and (d) learn 2nd labels for already-named objects, despite a persisting resistance to doing so ("mutual exclusivity"). The model explains these improvements in terms of increased attention to relevant aspects of form and meaning, which reduces memory interference. The interaction of associations and reference in word learning is discussed. 相似文献